Deljo Heating and Cooling

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Claim This BusinessAbout Deljo Heating and Cooling
Deljo Heating and Cooling operates as a premier air conditioning contractor serving Park Ridge, Illinois and surrounding communities. With a near-perfect 4.9-star rating accumulated across 416 customer reviews, the company has earned a reputation for responsive service backed by licensed technicians. The business maintains round-the-clock availability including weekends and holidays, ensuring homeowners have access to skilled professionals whenever heating or cooling emergencies arise. This combination of extensive client feedback, consistent high ratings, and continuous operational hours positions Deljo as a reliable choice for residential climate control needs in the greater Park Ridge metropolitan area.
What distinguishes Deljo Heating and Cooling from neighboring contractors lies in their capacity to manage comprehensive system installations within aging housing stock. Multiple reviewers recount the team successfully navigating challenge projects involving older homes with complex basement infrastructure, where positioning new HVAC components required creative problem-solving around existing plumbing and pipe layouts. The company's proficiency extends to high-efficiency furnace installations requiring specialized venting configurations, includingPVC pipe installations and structural modifications. Emergency response times documented in customer feedback demonstrate particularly swift turnaround, with one reviewer reporting a furnace issue diagnosed and resolved within a 90-minute window after morning discovery.
Customer experiences reveal the human element driving Deljo's service quality. Technician Kyle addressed an unexpected plumbing issue during a routine diagnostic visit, installing a toilet shutoff valve and replacement fill valve while providing customer savings on parts. For a full system upgrade, technician Jonathan managed a high-efficiency furnace installation requiring wall penetration and multiple pipe configurations, taking time to thoroughly explain system operation upon completion. Annual maintenance client Ivan received particular praise for going beyond standard service protocols, walking through new equipment features and offering practical guidance for the homeowner's climate system.
What Customers Say
Five reviewers consistently award five stars, with multiple customers highlighting specific technicians by name including Kyle, Ivan, and Jonathan. Three reviews document emergency or urgent situation response times, with Deljo achieving same-day or quick-turnaround service. One reviewer notes a post-installation furnace issue was diagnosed and repaired within 90 minutes of the morning call.
Working Hours
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
AC System Installation
Complete air conditioning system installation including modernheat pumps for residential properties.
Furnace Installation
New furnace installation services including high-efficiency unitsrequiring custom venting configurations.
Heating Repair
Emergency furnace repairs with documented rapid response timesfor urgent household situations.
Cooling Repair
Air conditioning diagnostic and repair services addressing systemmalfunctions and failures.
Annual Maintenance
Scheduled heating system maintenance ensuring optimalperformance before winter months.
Thermostat Installation
Smart thermostat installation and setup as part of full systemupgrades.